FreeCAD basics (Journal Entry 7)

Object 1

Object 1 was very simple due to the tutorial instructions. Creating the object did not take more than 15 minuets.

Object 2

Object 2 Sketch

Object 2 is a clip, that connects to a desk, that keeps a charging cord from falling to the ground. For my design i went with a very simple design which was very much like the one that was created in the demonstration in class.

Table Measurements

In order to ensure that the clip fits properly onto the table I measured the desk and the charging cord that the clip was built for. As you can see below, the desks width was 27.04 mm wide and the cord was 3.31 mm wide.

Object 2 Design

When I designed the final product I adjusted the width of the hole, that the cord goes into, to 6 mm to allow for easy fit. I also adjusted the opening on top of the whole to 4.5 mm in order for easy sliding of the cord into the hole, but still allowing for a tight fit. Lastly, I refined the edges to make the object smooth and uniform.

Object 3

Object 3 Sketch

My original design for the interlocking objects was a cube with a small arm that extends from one of the sides and another cube with a fitted hole. The arm would have a notch on the end and would be inserted into a second cube that had a hole that fit the arm. The cube would then be flipped 180 degrees in order to secure the objects together.

Object 2 Design

The final design of the interlocking object was slightly different than my original idea. I was unable to fit a small arm on one of the sides of the cube. Every time I attempted to do just that, the arm would be the same width as the cube itself. I also had trouble creating the hole in the other cube that would lock in the first cube. In order to do my best, my final design still consisted of some aspects of my first design. The first cube still consisted of an arm; however, the arm was the same width as the cube. The second cube also had a hole; however, the hole was the same width as the cube as well. I made the measurements of the hole .02 mm larger than the arm in order for a tight fit. This would insure that the cube with the arm would not slide out from the other. Overall, the 3rd design was the most difficult. I had to make some compromise, but I feel like my design is pretty solid.